Tire tread and buttress



FIG. 1 is a perspective view of a tire tread and buttress embodying our new design, it being understood that the pattern is repeated throughout the circumference of the tire tread and buttress, as shown schematically by solid lines, and that the buttress pattern is repeated on the opposite side.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a side elevational view thereof.

FIG. 4 is an enlarged, fragmentary developmental plan view thereof. 

The ornamental design for a tire tread and buttress, substantially as shown and described. 